JP3130203B2 - buckle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a buckle which is a latching tool used for connecting belt members used for various purposes.

[0002]

2. Description of the Related Art Conventionally, buckles provided at both ends of a belt, for example, consist of a plug body and a buckle main body, as disclosed in Japanese Utility Model Laid-Open No. 5-51110. It has a pair of insertion legs that project
A locking portion is formed at the tip of the insertion leg. Further, the buckle main body is provided with a locked portion to be locked by the locking portion. Further, on both sides of the pair of insertion legs, an operation portion for releasing the engagement of the locking portion engaged with the locked portion in the buckle body has a slight bulge outward. Is provided. On the other hand, on the buckle main body side, the operating portion is externally attached while the locking portion of the insertion leg portion inserted from the insertion port of the buckle main body passes through the inside of the buckle main body and engages with the locked portion. It has an opening exposed to the side.

In order to operate the buckle, first, the insertion body is inserted from the insertion opening of the buckle main body, and the locking portion of the insertion leg is engaged with the locked portion inside the buckle main body. At this time, the side surfaces of the pair of insertion legs abut against the locked portion in the buckle body with the insertion operation, and the insertion legs elastically deform inside each other. When the plug is pushed in past the contact position between the plug and the locked portion, the elastically deformed plug returns to its original shape, and the locking portion and the locked portion are engaged at that position. Things.

[0004]

In the case of the above-mentioned prior art, the insertion leg and the operating part pass through the buckle body,
Since the locking portion and the locked portion are engaged, there is a problem that the shape of the buckle body becomes large, particularly the thickness increases, and the amount of deformation of the insertion leg portion at the time of engagement increases. . In addition, since the insertion leg is formed linearly and has high rigidity against the force from both sides thereof, the engaging force between the locking portion and the locked portion is high. The legs had to be greatly elastically deformed, making the insertion operation difficult. Furthermore, when pressing the operating portion to release the engagement, similarly to the insertion, the operating portion must be pressed to significantly deform the insertion leg, and the engagement must be released. There was a problem that operability was poor. In addition, since the insertion leg has high rigidity and low flexibility, there is a disadvantage that the insertion leg is easily damaged when an excessive force is applied. Therefore, the conventional buckle has a contradictory problem that when the rigidity is reduced to improve the operability, the engagement force is reduced, and when the strength is increased, the operability is deteriorated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional technology, and is intended to provide a buckle which can be easily made thinner, has a secure engagement between the insertion body and the buckle main body, and has good operability at the time of attachment and detachment. The purpose is to provide.

[0006]

SUMMARY OF THE INVENTION The present invention comprises a plug body attached to one of members connected to each other, such as both ends of a belt, and a buckle body attached to the other,
A pair of insertion legs to be inserted into the buckle main body is protruded from the base of the insertion body, and a locking portion and an operation portion are formed on the insertion legs, and the buckle main body faces each other. The upper and lower plate portions provided in parallel with each other, and the upper plate portion and the lower plate portion formed in the insertion direction of the insertion leg portion are connected to each other at a central portion thereof, and the accommodating portion of the buckle body is provided. And a locked portion formed on the inner surface of the upper plate portion and the lower plate portion to be engaged with the locking portion, and the insertion direction of the insertion leg portion of the buckle main body. The top of a pair of parallel sides
Continue from the insertion slot of the storage
Opening, and how to insert the insertion leg
A slit formed in the direction provided, the engaging of the difference Komiashi portion
Between the stop portion and the operation portion, when forming the thin-walled portion to be inserted into the slit in the small thickness than the slit, inserting or removing the difference Komiashi portion to the buckle main body, the thin
Part is inserted into the slit through the opening and the outside
This is the buckle on which the operation unit is located.

Further, according to the present invention, the insertion leg portions are generally curved inward in a direction approaching each other, and the operation portions are formed on both sides of the curved portions. The above-mentioned thin portion is formed, and the locking portion and the operation portion are formed integrally with each other by this thin portion. The insertion leg has a long hole formed along the operation portion in a direction perpendicular to a plane including the insertion leg and long in a projecting direction of the insertion leg. is there. The elongated hole is a buckle that is formed continuously from the base end to the distal end of the insertion leg, and has a curved inner side edge of the insertion leg.

[0008]

According to the buckle of the present invention, when the insertion leg of the plug-in body is inserted into the accommodation portion of the buckle main body, the locking portion of the insertion leg portion is inserted into the accommodation portion of the buckle main body, and the operation portion is the buckle. The outer part moves along the side of the main body, and the thin part of the insertion leg is inserted into the slit on the side of the buckle main body with the insertion operation, and the engaging part of the insertion leg is engaged with the buckle main body. The stop portion engages.

When the locking portion of the insertion leg and the locked portion of the buckle body engage with each other, the insertion portion is bent by the curved insertion leg and the elongated hole formed in the insertion leg. The insertion leg can be flexibly elastically deformed, and the insertion leg inside the long hole bends and bends easily, so the insertion leg can be inserted into the buckle main body with relatively light force. Inserted. Also, when releasing the connection, the insertion leg can be similarly deformed inward by pressing the insertion leg with relatively light force, and the engagement between the locking portion and the locked portion can be easily released. Is what you can do.

[0010]

An embodiment of the present invention will be described below with reference to the drawings. The buckle of this embodiment is a resin insert 1 attached to one end of a member such as a belt (not shown).
And a resin buckle body 20 attached to the other end of the belt or to a mounting piece of another member (not shown), into which the insert body 10 is inserted and connected. This insert 10
Is provided with a pair of insertion legs 14 projecting from the base 12 and formed symmetrically with each other. On the front and back surfaces of the distal end portion of the insertion leg portion 14, a pair of locking portions 16 each having a locking surface 16 a inclined slightly inward toward the front end direction than the direction perpendicular to the projecting direction are provided. . On the outer side of the locking portion 16, a slope 16b which is inclined inward with respect to the insertion direction is formed. Further, the pair of insertion legs 14 are formed so as to bulge outward and are entirely curved in a direction in which the tips approach each other, and are orthogonal to a plane including the pair of insertion legs 14 from the base 12 to the tip. Slot 1 that is drilled in the direction of
7 are provided. Each of the long holes 17 is also formed to be curved inwardly in an arc shape.

An operation portion 18 is formed on each of the outer side surfaces of the insertion leg portion 14. The operating portion 18 is formed continuously from the base 12 with substantially the same thickness.
Between the engaging portion 16 at the distal end of the insertion leg portion 14 and the operation portion 18, a thin portion 11 formed in a predetermined thickness smaller than other portions in the insertion direction of the insertion leg portion 14. Is provided. The step between the thin portion 11 and the operation portion 18 serves as a regulation portion 19 that can abut on the side surface of the buckle body 20.

A belt mounting portion 15 for inserting one end of a belt or the like is formed on the base portion 12 of the insertion body 10, and the base portion 12 at an intermediate portion between the pair of insertion leg portions 14 is provided with the insertion leg portion 14. A pair of projecting pieces 13 projecting in the same direction as above are formed, and a space between the pair of projecting pieces 13 is a groove 13a.

The buckle body 20 comprises an upper plate 21 and a lower plate 22 provided facing each other in parallel with each other, and a guide piece 23 formed at the center of the insertion leg 14 in the insertion direction. Thereby, the upper plate part 21 and the lower plate part 22 are integrally connected, and the accommodating part 24 of the buckle main body 20 is formed.
The accommodation portion 24 has an insertion port 24a formed on the side where the insertion leg portion 14 of the insertion body 10 is inserted. Further, when inserting the insert 10 into the buckle main body 20, the guide piece 23 is fitted with the groove 13a of the insert 10 to facilitate the insertion operation, and the insert 10 is connected to the buckle main body 20. So that it does not swing inside.

In the buckle body 20, two pairs of locked portions 26 which engage with the two pairs of locking portions 16 of the insertion body 10 are formed on the inner surfaces of the upper plate 21 and the lower plate 22, respectively. They are provided one by one facing each other. In accordance with the shape of the locking surface 16 a of the locking portion 16, each of the locked portions 26 is inclined relative to the direction orthogonal to the insertion direction and slightly in the direction opposite to the insertion port 24 a. A stop surface 26a is formed, and a pair of through holes 25 for forming the locking surface 26a are formed in the upper plate portion 21.
Is formed. Further, each inner side surface of the locked portion 26 is a slope 26b inclined toward the center in the insertion direction from the insertion port 24a.

Openings 21a are formed on both sides of the buckle body 20 from the insertion opening 24a, and slits 27 are formed in the insertion direction of the insertion leg 14 from the edge of the opening 21a. Are formed. The width of the slit 27 is slightly larger than the thickness of the thin portion 11 of the insertion leg portion 14 and smaller than the width of the operation portion 18. Further, a belt attachment portion 28 through which a belt or the like is inserted is formed at an end of the buckle body 20 opposite to the insertion port 24a.

Next, the operation of the buckle of this embodiment will be described below. First, in order to attach the insertion body 10 to the buckle main body 20, as shown in the figure, the locking portion 16 of the insertion leg portion 14 is inserted into the insertion port 24a of the accommodation portion 24.
At this time, the guide piece 23 comes into contact with the inside of the distal end of the insertion leg 14 to guide in the insertion direction.
Groove portion 13a fits into the guide piece 23 to guide the insertion operation. Further, the operation part 18 moves outside along the side surface of the buckle main body 20, and the thin part 11 of the insertion leg part 14 is
Is inserted into the slit 27 through the opening 21a on the side surface of.

Then, the slope 16b of the locking portion 16 of the insertion leg portion 14 is fixed to the slope 26b of the locked portion 26 in the accommodation portion 24.
As the insertion body 10 is inserted into the buckle main body 20, the slope 16b of the locking portion 16 is pushed in a direction approaching each other along the slope 26b of the locked portion 26, and the pair of insertion legs 14 Are elastically deformed inside each other. Then, when pushed further, the insertion leg portion 14 is positioned at a position where the locked surface 26a of the locked portion 26 and the locking surface 16a of the locking portion 16 can face each other.
Resiliently returns outward, and the locking surface 16a and the locked surface 26a
And the connection between the insert 10 and the buckle body 20 is completed. During this time, the operation part 18 located on the side edge of the insertion leg part 14 is
In a state where the thin portion 11 is inserted through the slit 27, the thin portion 11 moves with the insertion of the insertion leg portion 14 and the elastic deformation.

When the connection is released, the operation unit 18
Is pressed from both sides, the insertion leg portion 14 is elastically deformed, and the regulating portion 19 inside the operation portion 18 is
In this state, the engagement between the locking portion 16 and the locked portion 26 is released, and the insertion piece 10 can be pulled out. Also, when the user pulls out, the operation unit 18 is always located outside the buckle body 20 and can be moved.
0 can be removed.

According to the buckle of this embodiment, the plug 1
The insertion / removal operation can be performed while the zero operation unit 18 is always positioned outside the buckle main body, and the connection and release operations of the plug-in body 10 can be performed extremely easily. Further, at the time of releasing the connection, the pull-out operation can be performed while holding the operation portion 18, and at the time of releasing the engagement, it is possible to prevent the insertion body 10 from jumping out due to its elastic force. Further, the locking portion 16 and the operating portion 18 are integrally formed via the thin portion 11, so that the engagement releasing operation is reliable, the strength of the entire insertion leg portion 14 is high, and the entire buckle is also thin. Can be something.

Furthermore, the insertion leg 14 of the insertion body 10 is easily bent elastically easily by the long hole 17, and in particular, the inside edge of the insertion leg 14 is curved so as to bulge outward. So
When the insertion legs 14 bend inward each other, a force in the compression direction acts on the side edge, and the curved side edge is easily bent, and the insertion and disengagement operation of the insertion leg 14 is performed. And the shape is easily deformed by external force and hardly damaged. Also, the insert 10 and the buckle body 2
When a force is applied in a direction to separate the locking surface 16a
Of the insertion leg 1 due to the inclination of the engagement surface between the
A component force in the engagement direction facing outward acts on the front end of the fourth member. Furthermore, the side edges 14 of the curved plug-in legs 14
In order for a to straighten, the locking portion 16 is pushed outward in the direction of engagement. With these, the locking portion 16 and the locked portion 2
6 can obtain an engagement state with an extremely strong connection force. In particular, the locking portion 16 and the locked portion 26 are
, The resistance at the time of insertion engagement and the force required for the engagement release operation may be small. In addition, locking portion 1
Since the insertion body 14 is inserted so as to be gradually curved by the inclined surfaces 16b and 26b of the locked portion 26, the force required for the insertion operation may be small, and the insertion is easier.

The buckle according to the present invention is not limited to the above embodiment, and the shapes of the insertion leg, its operating portion, the locking portion, and the locked portion of the buckle body can be appropriately set. The position of the thin portion and the shape, number, and position of the long holes can also be set as appropriate. For example, a plurality of long holes may be vertically connected to the insertion leg.

[0022]

According to the buckle of the present invention, a slit is formed on the side surface of the buckle main body, and the insertion / removal operation can be performed while the operating portion of the insertion body is positioned outside the buckle main body via the thin portion. The operability is extremely good, and also greatly contributes to the thinning of the buckle. In addition, by forming the insertion leg portion into a curved shape, the insertion leg portion is easily bent, and the locking portion operation portion is formed integrally with the thin portion through a thin portion, so that the strength is high and the engagement is reliable. And
In operation, it is easily elastically deformed and hardly damaged, thereby solving the conflicting problems of engagement strength and operability at once. Further, due to the long hole of the insertion leg portion, the insertion leg portion is more likely to bend and the engaging force does not decrease.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of a buckle according to the present invention.

FIG. 2 is a perspective view showing a connected state of a buckle insert and a buckle main body according to the embodiment.

FIG. 3 is a partially broken plan view showing a state in which a buckle insertion member and a buckle main body of this embodiment are separated.

FIG. 4 is a side view showing a state where a buckle insertion member and a buckle main body of this embodiment are separated.

FIG. 5 is a partially broken plan view showing a state where the buckle insert and the buckle main body of this embodiment are connected to each other.

FIG. 6 is a sectional view taken along line AA of FIG. 5;

FIG. 7 is a sectional view taken along the line BB of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Insert body 11 Thin part 12 Base part 14 Insertion leg part 16 Lock part 17 Elongate hole 18 Operation part 19 Restriction part 20 Buckle main body 21 Upper plate part 22 Lower plate part 23 Guide piece 24 Housing part 26 Locked part 27 slit

Claims (3)

(57) [Claims] An insert (10) attached to one of members connected to each other, such as both ends of a belt, and a buckle body (20) attached to the other. 12) The buckle body (20)
A pair of insertion legs (14) to be inserted into the projection is provided, and a locking portion (16) and an operation portion (18) are attached to the insertion legs (14).
The upper plate part (21) and the lower plate part (22) which are formed and are provided in parallel with facing each other on the buckle body (20).
And the upper plate portion (21) and the lower plate portion (22) formed in the insertion direction of the insertion leg portion (14) and connected to each other at a central portion thereof, and the accommodating portion ( 24) and a locked portion (26) formed on the inner surfaces of the upper plate portion (21) and the lower plate portion (22) and engaged with the locking portion (16). In the provided buckle,
The buckle body (20), in the insertion direction and a pair of parallel sides of the difference Komiashi portion (14), said plug body (1
0) is inserted into the receptacle (24) of the accommodation section (24).
a) and an opening (21a) continuous from this opening (2a).
1a) and formed in the insertion direction of the insertion leg (14)
A slit (27) is provided and the insertion leg (14)
Between the locking portion (16) and the operating portion (18)
Is formed with a thinner portion (11) having a thickness smaller than that of the slit (27) and inserted into the slit (27), and when the insertion leg (14) is inserted into and removed from the buckle body (20). The thin portion (11) is connected to the opening (21a).
A buckle characterized in that the buckle is inserted into the slit (27) through the opening and the operation section (18) is located outside the slit (27) . 2. The insertion leg portion (14) is formed to be curved inward in a direction approaching each other as a whole, and the operation portion (18) is formed on both sides of the curved portion. The thin portion (11) is formed on the distal end side of the operating portion (18), and the locking portion (16) and the operating portion (18) are integrally provided via the thin portion (11). The buckle according to claim 1, wherein a stepped portion formed by the thin portion (11) and the operating portion (18) is provided as a regulating portion (19) which comes into contact with a side surface of the buckle body (20) during operation. 3. The pair of insertion legs (14) are respectively provided inside and along the operation portion (18) in a direction orthogonal to a plane including the pair of insertion legs (14). The buckle according to claim 1 or 2, wherein a long hole (17) is formed in the projecting direction of the insertion leg (14).